diff --git a/bin/app b/bin/app
index 6bc65cb..a8e74b8 100755
--- a/bin/app
+++ b/bin/app
@@ -102,7 +102,7 @@ _main() {
 	fi
 
 	_cmd="${1:-help}"
-	if ! [[ -z "$@" ]]; then
+	if ! [[ -z "${1+x}" ]]; then
 		shift
 	fi